A multi-freedom adjustable foot pedal and cab

Abstract

The present invention discloses a multi-degree-of-freedom adjustable foot pedal and a cab, wherein the multi-degree-of-freedom adjustable foot pedal comprises an upper tread, a foot pedal base, a pin shaft, a slideway, a traction member, a first adjustment slider and a second adjustment slider; the upper tread is connected to the foot pedal base through the pin shaft; the slideway is arranged on a side of the foot pedal base close to the upper tread, and a scale line is arranged on the upper surface of the slideway; one end of the traction member is connected to the upper tread, and the other end is connected to the second adjustment slider; the first adjustment slider and the second adjustment slider are both slidably connected to the slideway, the first adjustment slider cooperates with the scale line on the upper surface of the slideway to determine the terminal angle of the upper tread, and the second adjustment slider cooperates with the scale line on the upper surface of the slideway to determine the initial angle of the upper tread. The present invention can adjust the foot pedal to a comfortable angle and position according to the height and weight of the driver, and is a dynamic and real operation process.

Description

Technical Field

[0001] The invention belongs to the field of engineering machinery, and in particular relates to a multi-freedom adjustable foot pedal and a cab. Background Art

[0002] With the continuous improvement of human living standards and the continuous development of science and technology, people have higher and higher requirements for human-machine interaction and operational comfort of products. The layout of various operating components in the cab directly affects the operational comfort when the operator is driving construction machinery. Reasonable human-machine layout can not only improve the operational comfort, but also improve the user experience of the product and increase the added value of the product.

[0003] As one of the main operating components in the cab of construction machinery, the foot pedal determines the driver's driving posture and driving comfort to a large extent. At present, the layout of the foot pedal is generally simulated by software first, and then several foot pedals with different initial angles, angle travels, etc. are purchased for experience. If none of them are suitable, they need to be purchased again, and so on. Therefore, it is necessary to design a multi-degree-of-freedom adjustable foot pedal to overcome the defects in the existing technology.

[0004] A Chinese utility model patent with the publication number CN 209590673 U discloses an adjustable foot pedal, comprising a base plate (1), an adjustment plate (3) and a locking mechanism, wherein the right end of the adjustment plate (3) is rotatably connected to the right end of the base plate (1), and a plurality of adjustment through holes are provided on the left end of the adjustment plate (3), and the adjustment through holes are fixedly connected to the left end of the base plate (1) through the locking mechanism. The device can be used to adjust the angle of the foot pedal for people of different heights, thereby improving the user's comfort.

[0005] A Chinese utility model patent with announcement number CN 215811644 U discloses a pedal simulation device, including a base plate, a footrest, a height adjustment structure, a front and rear adjustment slide rail and an angle adjustment structure. The height adjustment structure includes a Z-axis worm and a Z-axis turbine, the Z-axis turbine is mounted on the base plate, the Z-axis worm cooperates with the Z-axis turbine, the front and rear adjustment slide rail includes a first track and a second track, the first track is connected to the Z-axis turbine, the second track is slidably mounted on the first track, the angle adjustment structure includes an angle adjustment turbine and an angle adjustment worm, the angle adjustment turbine is mounted on the second track, the angle adjustment worm cooperates with the angle adjustment turbine, and the footrest is connected to the angle adjustment turbine. Through the above design, the height adjustment structure of the pedal simulation device adjusts the height of the footrest, the front and rear adjustment slide rail adjusts the X-direction position of the footrest, and the angle adjustment structure adjusts the angle of the footrest, so that the pedal simulation device can be suitable for different types of vehicles by adjusting the height, position and angle of the footrest.

[0006] It can be seen that the solutions in the prior art mainly have the following problems:

[0007] (1) After the pedal is adjusted in the prior art, it can only be used to statically simulate the initial angle and position of the pedal, and cannot simulate the pedaling motion.

[0008] (2) The pedal adjustment mechanism in the prior art is relatively complex, and the angle and position adjustment and locking process are relatively cumbersome, or there is only a single parameter adjustment, which can only adjust one dimension, and it does not have the function of stepless adjustment, and cannot fully meet the user's use needs.

[0009] (3) In the prior art solution, each adjustment point lacks scale display, and each adjustment requires manual measurement, which is inefficient. Summary of the invention

[0010] In view of the above problems, the present invention proposes a multi-degree-of-freedom adjustable foot pedal and a cab, which can adjust the foot pedal to a comfortable angle and position according to the height and weight of the driver, which is a dynamic and real operation process.

[0011] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0012] In a first aspect, the present invention provides a multi-degree-of-freedom adjustable foot pedal, comprising: an upper tread, a foot pedal bottom plate, a pin shaft, a slideway, a traction member, a first adjustment slider and a second adjustment slider;

[0013] The upper tread is connected to the pedal bottom plate via the pin shaft;

[0014] The slide is arranged on one side of the pedal bottom plate close to the upper tread surface, and the upper surface of the slide is provided with scale lines;

[0015] One end of the traction member is connected to the upper tread, and the other end is connected to the second adjustment slider;

[0016] The first adjustment slider and the second adjustment slider are both slidably connected to the slide, the first adjustment slider cooperates with the scale lines on the upper surface of the slide to determine the end angle of the upper tread, and the second adjustment slider cooperates with the scale lines on the upper surface of the slide to determine the initial angle of the upper tread.

[0017] Optionally, the multi-degree-of-freedom adjustable foot pedal further includes an axle, a fan-shaped slideway and fan-shaped angle scale lines;

[0018] The shaft body is arranged on a side of the pedal bottom plate away from the upper tread surface and is located in the fan-shaped slideway and can rotate along the fan-shaped slideway;

[0019] The fan-shaped angle scale line is close to an end of the pedal base plate away from the pin shaft, and is used to indicate the rotation angle of the multi-degree-of-freedom adjustable pedal in a preset direction.

[0020] Optionally, a reinforcing rib is provided on one side of the upper tread close to the pedal bottom plate, one end of the traction member is connected to the reinforcing rib, and the other end is connected to the second adjusting slider.

[0021] Optionally, the slideway includes a first protruding block and a second protruding block that are arranged opposite to each other, and the first adjusting sliding block and the second adjusting sliding block are partially located in a gap between the first protruding block and the second protruding block.

[0022] Optionally, the first adjusting slider and the second adjusting slider have the same structure, and both include a slider base, a stud and an indicator plate;

[0023] The slider base is arranged in the slideway;

[0024] The stud and the indicator plate are both arranged on the slider base;

[0025] The stud part protrudes out of the slideway;

[0026] The indicator plate partially protrudes out of the slideway, and partially fits with the scale line on the upper surface of the slideway.

[0027] Optionally, the indicator board includes a vertical board and a horizontal board;

[0028] One end of the vertical plate is vertically connected to the slider base, and the other end protrudes out of the slideway;

[0029] One end of the horizontal plate is vertically connected to the vertical plate and is in contact with the scale line on the upper surface of the slideway.

[0030] Optionally, the first adjusting slider and the second adjusting slider further include a fastener, and the fastener fixes the first adjusting slider or the second adjusting slider on the slideway.

[0031] Optionally, a return torsion spring is sleeved on the pin shaft, one of the elastic arms of the return torsion spring is connected to the upper tread surface, and the other elastic arm is connected to the pedal bottom plate.

[0032] Optionally, the traction member is a steel wire rope.

[0033] In a second aspect, the present invention provides a cab, comprising: a floor, a seat, and a multi-degree-of-freedom adjustable foot pedal as described in any one of the first aspects;

[0034] The multi-degree-of-freedom adjustable footrest and seat are mounted on the floor;

[0035] The multi-freedom adjustable footrest rotates around a shaft disposed at the bottom thereof along a fan-shaped slideway on the floor;

[0036] The floor is provided with sector-shaped angle scale lines, and the sector-shaped angle scale lines are used to indicate the rotation angle of the multi-degree-of-freedom adjustable foot pedal in a preset direction.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The invention provides a multi-degree-of-freedom adjustable foot pedal and a cab. The driver can adjust the foot pedal to a comfortable angle and position according to his / her height and weight, and then perform work operations, which is a dynamic and real operation process.

[0039] The multi-degree-of-freedom adjustable foot pedal provided by the present invention belongs to the multi-degree-of-freedom stepless adjustment, including the adjustment contents such as the initial angle of the foot pedal, the movement stroke of the foot pedal, the left and right installation angles of the foot pedal, etc., and while having multiple degrees of freedom stepless adjustment, it has a reasonable design, a simple structure, and a low production cost, which is conducive to improving the production efficiency of the enterprise.

[0040] The present invention is provided with scale indications on each adjustment dimension, which is convenient for adjustment and has good readability.

[0041] The present invention is mainly used for experimental research on the overall arrangement of man and machine, and can also be used in actual engineering machinery vehicles by adding a transmission mechanism on this basis, thereby improving the comfort of man-machine operation in the cab of the actual vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings, wherein:

[0043] Figure 1 A perspective view of a footrest according to an embodiment of the present invention Figure 1 ;

[0044] Figure 2 A perspective view of a footrest according to an embodiment of the present invention Figure 2 ;

[0045] FIG3( a ) is a perspective view of an adjustment slider according to an embodiment of the present invention;

[0046] FIG3( b ) is a side view of an adjusting slider according to an embodiment of the present invention;

[0047] FIG4( a ) is a front view of a foot pedal according to an embodiment of the present invention;

[0048] FIG4(b) is an enlarged schematic diagram of point A in FIG4(a);

[0049] FIG5( a ) is a side view of an initial angle of a foot pedal according to an embodiment of the present invention;

[0050] FIG5(b) is an enlarged schematic diagram of point B in FIG5(a);

[0051] Figure 6 A top view of the lower half of a foot pedal according to an embodiment of the present invention;

[0052] Figure 7 A side view of a foot pedal according to an embodiment of the present invention when the foot pedal is stepped on to the bottom;

[0053] Figure 8 A diagram showing the operation of a foot pedal according to an embodiment of the present invention;

[0054] 1-multi-degree-of-freedom adjustable foot pedal, 2-floor, 3-seat, 4-upper tread, 5-sector angle scale, 6-slide, 61-first raised block, 62-second raised block, 7-sector slide, 8-pedal base, 9-traction member, 10-reset torsion spring, 11-axis, 12-stud, 13-first adjustment slider, 14-second adjustment slider, 15-pin shaft, 16-reinforcement rib, 17-slider base, 18-indicator plate, 181-vertical plate, 182-horizontal plate, 19-first nut, 20-second nut. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of protection of the present invention.

[0056] In the description of the patent of the present invention, it should be noted that the terms "up", "down", "left", "right", "horizontal", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the patent of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the patent of the present invention.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0058] The application principle of the present invention is described in detail below in conjunction with the accompanying drawings.

[0059] Example 1

[0060] In an embodiment of the present invention, a multi-degree-of-freedom adjustable foot pedal 1 is provided. Figure 1-2 5(a) and 5(b), it comprises: an upper tread 4, a pedal base plate 8, a pin 15, a slideway 6, a traction member 9, a first adjusting slider 13 and a second adjusting slider 14;

[0061] The upper tread 4 is connected to the pedal base 8 via the pin 15;

[0062] The slideway 6 is arranged on one side of the pedal bottom plate 8 close to the upper tread 4, and a scale line 63 is arranged on the upper surface of the slideway 6;

[0063] One end of the traction member 9 is connected to the upper tread 4, and the other end is connected to the second adjustment slider 14; in the specific implementation process, the traction member 9 can be a steel wire rope;

[0064] The first adjusting slider 13 and the second adjusting slider 14 are both slidably connected to the slide 6. The first adjusting slider 13 cooperates with the scale line 63 on the upper surface of the slide 6 to determine the end angle of the upper tread 4, and the second adjusting slider 14 cooperates with the scale line 63 on the upper surface of the slide 6 to determine the initial angle of the upper tread 4.

[0065] The present invention provides a multi-degree-of-freedom adjustable foot pedal 1 and a cab. The driver can adjust the foot pedal to a comfortable angle and position according to his / her height and weight, and then perform work operations, which is a dynamic and real operation process.

[0066] In a specific implementation of the embodiment of the present invention, Figure 1-2 As shown, the multi-degree-of-freedom adjustable foot pedal 1 further includes an axle body 11, a fan-shaped slideway 7 and a fan-shaped angle scale line 5;

[0067] In the specific implementation process, the shaft body 11 can be a shaft body 11 such as a round shaft that can slide along the fan-shaped slide 7. The specific form is not limited, as long as it can slide along the fan-shaped slide 7. It should be noted that the shaft body 11 is the heel point position of the multi-degree-of-freedom adjustable foot pedal 1, so in the preset direction of the multi-degree-of-freedom adjustable foot pedal 1 (such as Figure 8 The heel point position will not be changed during the angle adjustment process (in the Y direction), so the overall layout of the interior components of the cab will not be changed due to adjusting the rotation angle of the multi-degree-of-freedom adjustable foot pedal 1.

[0068] The shaft body 11 is arranged on a side of the pedal bottom plate 8 away from the upper tread surface 4 and is located in the fan-shaped slideway 7 and can rotate along the fan-shaped slideway 7;

[0069] The sector angle scale line 5 is close to the end of the pedal base plate 8 away from the pin shaft 15, and is used to indicate the rotation angle of the multi-degree-of-freedom adjustable pedal 1 in a preset direction; in the specific implementation process, in order to better cooperate with the sector angle scale line 5, the end of the pedal base plate 8 away from the pin shaft 15 is designed to be in the form of a pointer.

[0070] In a specific implementation of the embodiment of the present invention, in order to increase the strength and reliability of the upper tread 4, a reinforcing rib 16 is provided on one side of the upper tread 4 close to the pedal bottom plate 8, and the extending direction of the reinforcing rib 16 is the same as the extending direction of the upper tread 4; one end of the traction member 9 is connected to the reinforcing rib 16, and the other end is connected to the second adjusting slider 14. In the specific implementation process, the reinforcing rib 16 can be welded to the upper tread 4.

[0071] In a specific implementation of the embodiment of the present invention, Figure 1-2 As shown, the slideway 6 includes a first protruding block 61 and a second protruding block 62 that are arranged opposite to each other, and the first adjusting slider 13 and the second adjusting slider 14 are partially located in the gap between the first protruding block 61 and the second protruding block 62, and the two can move forward and backward along the slideway 6. In a specific implementation process, the first protruding block 61 and the second protruding block 62 can be connected to the pedal bottom plate 8 by welding.

[0072] In a specific implementation of the embodiment of the present invention, Figure 3(a)-Figure 3(b) As shown, the first adjusting slider 13 and the second adjusting slider 14 have the same structure, and both include a slider base 17, a stud 12 and an indicator plate 18;

[0073] The slider base 17 is disposed in the slideway 6;

[0074] The stud 12 and the indicator plate 18 are both arranged on the slider base 17;

[0075] The stud 12 partially protrudes out of the slideway 6;

[0076] Part of the indicator plate 18 protrudes out of the slideway 6 , and part of it fits with the scale line on the upper surface of the slideway 6 .

[0077] More specifically, if Figure 3(a)-Figure 3(b) As shown, the indicator plate 18 includes a vertical plate 181 and a horizontal plate 182;

[0078] One end of the vertical plate 181 is vertically connected to the slider base 17, and the other end protrudes out of the slideway 6; in the specific implementation process, a bolt hole 183 is provided on the plate 181, one end of the traction member 9 is fixed to the bolt hole 183 by a bolt, and the other end of the traction member 9 is also fixed to the upper tread 4 by a bolt;

[0079] One end of the horizontal plate 182 is vertically connected to the vertical plate 181 and is aligned with the scale line on the upper surface of the slideway 6. In the specific implementation process, the horizontal plate 182 is a rectangular plate.

[0080] In a specific implementation of the embodiment of the present invention, Figure 2 4(a), 4(b), 5(a), and 5(b), the first adjusting slider 13 and the second adjusting slider 14 further include a fastener, which fixes the first adjusting slider 13 or the second adjusting slider 14 on the slideway 6. In the first adjusting slider 13, the fastener is a first nut 19; in the second adjusting slider 14, the fastener is a second nut 20.

[0081] In a specific implementation of the embodiment of the present invention, Figure 2 and 6 As shown, a return torsion spring 10 is sleeved on the pin shaft 15 , one of the elastic arms of the return torsion spring 10 is connected to the upper tread 4 , and the other elastic arm is connected to the pedal bottom plate 8 .

[0082] The following multi-degree-of-freedom adjustment of the multi-degree-of-freedom adjustable foot pedal 1 in the embodiment of the present invention mainly includes the following aspects:

[0083] ① The angular movement stroke of the upper tread 4 is adjustable, specifically:

[0084] The stud 12 in the first adjusting slider 13 is used to limit the angle of the upper tread 4. When the reinforcing rib 16 touches the stud 12 in the first adjusting slider 13 during stepping on the upper tread 4, the end angle is reached. The first adjusting slider 13 slides forward and backward along the slideway 6, driving the stud 12 in the first adjusting slider 13 to slide forward and backward, and the end angle of the upper tread 4 changes accordingly, thereby changing the angular motion stroke of the upper tread 4. The indicator plate 18 in the first adjusting slider 13 cooperates with the scale line on the upper surface of the slideway 6 to indicate the end angle of the upper tread 4. When the angle is adjusted to the preset angle, tighten the first nut 19.

[0085] ② The initial angle of the upper tread 4 is adjustable, specifically:

[0086] The second adjusting slider 14 slides forward and backward along the slideway 6, driving the traction member 9 to pull the upper tread 4 to rotate, thereby changing the initial angle of the upper tread 4. The indicator plate 18 in the second adjusting slider 14 cooperates with the scale line on the upper surface of the slideway 6 to indicate the initial angle of the upper tread 4. When the preset angle is adjusted, the second nut 20 is tightened.

[0087] ③The Y-axis angle of the pedal is adjustable, specifically:

[0088] By loosening the fixing bolts on both sides of the pedal, the pedal can rotate around the shaft 11 along the fan-shaped slide 7, and the pedal bottom plate 8 cooperates with the angle scale line to indicate the Y-axis rotation angle of the pedal.

[0089] like Figure 7 The figure shows a side view of the pedal 1 when it is stepped to the bottom.

[0090] Example 2

[0091] In an embodiment of the present invention, a cab is provided, such as Figure 8 As shown, it comprises: a floor 2, a seat 3 and a multi-freedom adjustable footrest 1 as described in any one of the embodiments 1;

[0092] The multi-degree-of-freedom adjustable footrest 1 and the seat 3 are assembled on the floor 2; in a specific implementation process, the multi-degree-of-freedom adjustable footrest 1 and the seat 3 can be assembled on the floor 2 by bolts;

[0093] The multi-freedom adjustable footrest 1 rotates around the shaft 11 provided at the bottom thereof along the fan-shaped slideway 7 on the floor 2;

[0094] The floor 2 is provided with sector-shaped angle scale lines 5, and the sector-shaped angle scale lines 5 are used to indicate the rotation angle of the multi-degree-of-freedom adjustable foot pedal 1 in a preset direction.

[0095] In actual use, when the multi-degree-of-freedom adjustable foot pedal 1 rotates around the axis 11, friction will inevitably occur between the lower surface of the foot pedal base 8 and the floor 2. In order to avoid structural damage caused by long-term use, a gasket can be further added between the foot pedal base 8 and the floor 2.

[0096] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multi-degree-of-freedom adjustable foot pedal, characterized in that: include: An upper tread, a pedal bottom plate, a pin shaft, a slideway, a traction member, a first adjusting slider and a second adjusting slider; The upper tread is connected to the pedal bottom plate via the pin shaft; The slide is arranged on one side of the pedal bottom plate close to the upper tread surface, and the upper surface of the slide is provided with scale lines; One end of the traction member is connected to the upper tread, and the other end is connected to the second adjustment slider; The first adjusting slider and the second adjusting slider are both slidably connected to the slideway, the first adjusting slider cooperates with the scale lines on the upper surface of the slideway to determine the end angle of the upper tread, and the second adjusting slider cooperates with the scale lines on the upper surface of the slideway to determine the initial angle of the upper tread; The multi-freedom adjustable foot pedal also includes an axle body, a fan-shaped slideway and fan-shaped angle scale lines; The shaft body is arranged on a side of the pedal bottom plate away from the upper tread surface and is located in the fan-shaped slideway and can rotate along the fan-shaped slideway; The fan-shaped angle scale line is close to the end of the pedal base away from the pin shaft, and is used to indicate the rotation angle of the multi-degree-of-freedom adjustable pedal in a preset direction. The first adjusting slider and the second adjusting slider have the same structure, and both include a slider base, a stud and an indicator plate; The slider base is arranged in the slideway; The stud and the indicator plate are both arranged on the slider base; The stud part protrudes out of the slideway; The indicator plate partially protrudes out of the slideway, and partially fits with the scale line on the upper surface of the slideway.

2. The multi-degree-of-freedom adjustable foot pedal according to claim 1, characterized in that: A reinforcing rib is provided on one side of the upper tread surface close to the pedal bottom plate, one end of the traction member is connected to the reinforcing rib, and the other end is connected to the second adjusting slider.

3. The multi-degree-of-freedom adjustable foot pedal according to claim 1, characterized in that: The slideway comprises a first protruding block and a second protruding block which are arranged opposite to each other, and the first adjusting sliding block and the second adjusting sliding block are partially located in a gap between the first protruding block and the second protruding block.

4. The multi-degree-of-freedom adjustable foot pedal according to claim 1, characterized in that: The indicator board includes a vertical board and a horizontal board; One end of the vertical plate is vertically connected to the slider base, and the other end protrudes out of the slideway; One end of the horizontal plate is vertically connected to the vertical plate and is in contact with the scale line on the upper surface of the slideway.

5. The multi-degree-of-freedom adjustable foot pedal according to claim 1, characterized in that: The first adjusting slider and the second adjusting slider further include a fastener, and the fastener fixes the first adjusting slider or the second adjusting slider on the slideway.

6. The multi-degree-of-freedom adjustable foot pedal according to claim 1, characterized in that: A return torsion spring is sleeved on the pin shaft, one of the elastic arms of the return torsion spring is connected to the upper tread surface, and the other elastic arm is connected to the pedal bottom plate.

7. The multi-degree-of-freedom adjustable foot pedal according to claim 1, characterized in that: The traction member is a steel wire rope.

8. A cab, characterized in that: include: A floor, a seat and a multi-degree-of-freedom adjustable footrest according to any one of claims 1 to 7; The multi-degree-of-freedom adjustable footrest and seat are mounted on the floor; The multi-freedom adjustable footrest rotates around a shaft disposed at the bottom thereof along a fan-shaped slideway on the floor; The floor is provided with sector-shaped angle scale lines, and the sector-shaped angle scale lines are used to indicate the rotation angle of the multi-degree-of-freedom adjustable foot pedal in a preset direction.

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